package niuke;

/**
 * description:
 * author:张腾
 * date:2021-06-24
 */
public class ListNode {
  public int val;
  public ListNode next;
  public ListNode() {}
  public ListNode(int val) { this.val = val; }
  public ListNode(int val, ListNode next) { this.val = val; this.next = next; }
}
